:root {
    --ink: #101828;
    --muted: #566174;
    --line: #d9e1e8;
    --paper: #ffffff;
    --soft: #f4f7f8;
    --navy: #102a43;
    --teal: #087f6d;
    --teal-dark: #065f52;
    --lime: #b9dc55;
    --amber: #f0b429;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    line-height: 1.75;
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

.page-container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    isolation: isolate;
    background: #fff;
    border-bottom: 1px solid rgba(16, 42, 67, 0.1);
}

.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: url("images/hero-bg.jpg") center 42% / cover no-repeat;
    opacity: 0.08;
}

.header-inner {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    flex: 0 0 auto;
}

.brand-mark {
    display: none;
}

.brand strong,
.brand small {
    display: block;
    letter-spacing: 0;
}

.brand strong {
    color: #2d4054;
    font-size: 27px;
    font-weight: 700;
    line-height: 1.2;
}

.brand small {
    margin-top: 2px;
    color: #687587;
    font-size: 9px;
    line-height: 1.2;
    text-transform: uppercase;
}

.security-nav-links {
    display: flex;
    align-items: center;
    gap: 34px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.security-nav-links a {
    color: #2f2f2f;
    font-size: 18px;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
}

.security-nav-links a:hover,
.security-nav-links a:focus-visible {
    color: #111;
}

.security-nav-links .nav-contact {
    display: inline-flex;
    align-items: center;
    min-height: 0;
    padding: 0;
    background: transparent;
    color: #2f2f2f;
}

.security-nav-links .nav-contact:hover,
.security-nav-links .nav-contact:focus-visible {
    background: transparent;
    color: #111;
}

.solution-hero {
    position: relative;
    overflow: hidden;
    min-height: 600px;
    padding: 38px 0 0;
    background-color: var(--navy);
    color: #fff;
}

.solution-hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 7px;
    background: var(--lime);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #c5d2df;
    font-size: 13px;
}

.breadcrumb a {
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #fff;
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.65fr);
    gap: 84px;
    align-items: end;
    padding: 76px 0 66px;
}

.eyebrow,
.section-kicker {
    margin: 0 0 14px;
    color: var(--teal);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.solution-hero .eyebrow {
    color: var(--lime);
}

.publish-meta {
    margin: 0 0 16px;
    color: #9fb3c8;
    font-size: 13px;
}

.hero-copy h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(44px, 6vw, 76px);
    line-height: 1.12;
    letter-spacing: 0;
}

.hero-lead {
    max-width: 700px;
    margin: 26px 0 0;
    color: #d7e2ec;
    font-size: 18px;
    line-height: 1.9;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 24px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.hero-actions a:hover {
    transform: translateY(-2px);
}

.primary-action {
    gap: 16px;
    background: var(--lime);
    color: var(--navy);
}

.secondary-action {
    border-color: rgba(255, 255, 255, 0.45) !important;
    color: #fff;
}

.secondary-action:hover {
    background: #fff;
    color: var(--navy);
}

.hero-summary {
    border-top: 1px solid rgba(255, 255, 255, 0.32);
    padding-top: 18px;
}

.summary-label {
    margin: 0 0 8px;
    color: #9fb3c8;
    font-size: 12px;
    font-weight: 700;
}

.hero-summary ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.hero-summary li {
    display: flex;
    gap: 15px;
    align-items: center;
    min-height: 49px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: #edf2f7;
    font-size: 14px;
}

.hero-summary li span {
    color: var(--lime);
    font-size: 11px;
    font-weight: 800;
}

.metric-strip {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin: 0;
    background: #fff;
    box-shadow: 0 18px 48px rgba(16, 42, 67, 0.14);
    color: var(--ink);
}

.metric-strip div {
    padding: 24px 28px;
    border-right: 1px solid var(--line);
}

.metric-strip div:last-child {
    border-right: 0;
}

.metric-strip dt {
    color: var(--teal);
    font-size: 27px;
    font-weight: 800;
    line-height: 1.2;
}

.metric-strip dd {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.article-layout {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 70px;
    padding-top: 110px;
    padding-bottom: 100px;
}

.section-index {
    position: sticky;
    top: 104px;
    align-self: start;
    padding-left: 18px;
    border-left: 2px solid var(--line);
}

.section-index p {
    margin: 0 0 12px;
    color: var(--ink);
    font-size: 13px;
    font-weight: 800;
}

.section-index a {
    display: block;
    padding: 7px 0;
    color: #667085;
    font-size: 13px;
    text-decoration: none;
}

.section-index a:hover,
.section-index a:focus-visible {
    color: var(--teal);
}

.article-content {
    min-width: 0;
}

.content-section,
.focus-panel {
    scroll-margin-top: 110px;
}

.content-section {
    margin-bottom: 96px;
}

.content-section h2,
.focus-panel h2 {
    margin: 0;
    color: var(--navy);
    font-size: 36px;
    line-height: 1.3;
    letter-spacing: 0;
}

.section-intro {
    max-width: 850px;
    margin: 20px 0 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 2;
}

.standard-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 34px;
    margin: 44px 0 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--line);
}

.standard-list > li {
    padding: 28px 0 30px;
    border-bottom: 1px solid var(--line);
}

.standard-list > li:nth-child(4) {
    grid-column: 1 / -1;
}

.standard-heading {
    display: flex;
    align-items: baseline;
    gap: 13px;
}

.standard-heading span {
    color: var(--teal);
    font-size: 11px;
    font-weight: 800;
}

.standard-heading h3,
.lifecycle-list h3 {
    margin: 0;
    color: var(--ink);
    font-size: 19px;
    line-height: 1.5;
}

.standard-list p {
    margin: 12px 0 0 32px;
    color: var(--muted);
    font-size: 14px;
}

.standard-list strong {
    color: var(--ink);
}

.focus-panel {
    display: grid;
    grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
    gap: 56px;
    margin: 0 0 96px;
    padding: 38px 40px;
    background: var(--navy);
    border-left: 7px solid var(--lime);
    color: #fff;
}

.focus-panel .section-kicker {
    color: var(--lime);
}

.focus-panel h2 {
    color: #fff;
    font-size: 29px;
}

.focus-panel > p {
    margin: 0;
    color: #d7e2ec;
    font-size: 16px;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 40px;
}

.capability-grid article {
    min-height: 280px;
    padding: 28px;
    border: 1px solid var(--line);
    border-top: 5px solid var(--teal);
    border-radius: 4px;
    background: var(--paper);
}

.capability-grid article:nth-child(2) {
    border-top-color: var(--amber);
}

.capability-grid article:nth-child(3) {
    border-top-color: var(--navy);
}

.capability-code {
    color: var(--teal);
    font-size: 11px;
    font-weight: 800;
}

.capability-grid h3 {
    margin: 30px 0 12px;
    color: var(--navy);
    font-size: 22px;
}

.capability-grid p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.lifecycle-list {
    margin: 44px 0 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--line);
}

.lifecycle-list li {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 20px;
    padding: 26px 0;
    border-bottom: 1px solid var(--line);
}

.lifecycle-list > li > span {
    color: var(--teal);
    font-size: 13px;
    font-weight: 800;
}

.lifecycle-list p {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.architecture-section {
    margin-bottom: 0;
}

.architecture-section figure {
    margin: 40px 0 0;
    padding: 22px;
    background: var(--soft);
    border: 1px solid var(--line);
}

.architecture-section img {
    width: 100%;
    height: auto;
    background: #fff;
}

.architecture-section figcaption {
    margin-top: 13px;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.solution-footer {
    padding: 58px 0 24px;
    background: #0b1f33;
    color: #fff;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding-bottom: 42px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-inner strong {
    font-size: 22px;
}

.footer-inner p {
    margin: 6px 0 0;
    color: #9fb3c8;
    font-size: 13px;
}

.footer-inner a {
    display: inline-flex;
    gap: 16px;
    align-items: center;
    min-height: 46px;
    padding: 0 22px;
    background: var(--lime);
    color: var(--navy);
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.copyright {
    width: min(1180px, calc(100% - 40px));
    margin: 20px auto 0;
    color: #829ab1;
    font-size: 12px;
}

@media (max-width: 920px) {
    .header-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 13px 0 10px;
    }

    .site-header nav {
        width: 100%;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .security-nav-links {
        gap: 24px;
        width: max-content;
    }

    .security-nav-links a {
        font-size: 15px;
    }

    .security-nav-links .nav-contact {
        min-height: auto;
        padding: 0;
        background: transparent;
        color: #344054;
    }

    .hero-layout {
        grid-template-columns: 1fr;
        gap: 48px;
        padding: 58px 0 62px;
    }

    .metric-strip {
        grid-template-columns: repeat(2, 1fr);
    }

    .metric-strip div:nth-child(2) {
        border-right: 0;
    }

    .metric-strip div:nth-child(-n+2) {
        border-bottom: 1px solid var(--line);
    }

    .article-layout {
        grid-template-columns: 1fr;
        gap: 0;
        padding-top: 86px;
    }

    .section-index {
        display: none;
    }

    .capability-grid {
        grid-template-columns: 1fr;
    }

    .capability-grid article {
        min-height: 0;
    }
}

@media (min-width: 921px) and (max-width: 1180px) {
    .header-inner {
        gap: 18px;
    }

    .brand strong {
        font-size: 23px;
    }

    .security-nav-links {
        gap: 18px;
    }

    .security-nav-links a {
        font-size: 15px;
    }
}

@media (max-width: 640px) {
    .page-container {
        width: min(100% - 28px, 1180px);
    }

    .brand small {
        display: none;
    }

    .solution-hero {
        min-height: 0;
        padding-top: 28px;
    }

    .hero-layout {
        padding-top: 46px;
    }

    .hero-copy h1 {
        font-size: 41px;
    }

    .hero-lead {
        font-size: 16px;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .metric-strip {
        grid-template-columns: 1fr;
    }

    .metric-strip div,
    .metric-strip div:nth-child(2) {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .metric-strip div:last-child {
        border-bottom: 0;
    }

    .article-layout {
        padding-top: 72px;
        padding-bottom: 72px;
    }

    .content-section,
    .focus-panel {
        scroll-margin-top: 170px;
    }

    .content-section,
    .focus-panel {
        margin-bottom: 72px;
    }

    .content-section h2,
    .focus-panel h2 {
        font-size: 29px;
    }

    .section-intro {
        font-size: 16px;
    }

    .standard-list {
        grid-template-columns: 1fr;
    }

    .standard-list > li:nth-child(4) {
        grid-column: auto;
    }

    .standard-list p {
        margin-left: 0;
    }

    .focus-panel {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 30px 24px;
    }

    .architecture-section figure {
        margin-right: -14px;
        margin-left: -14px;
        padding: 8px;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
    }
}